Mass-matrix ansatz and constraints on $B_{s}^{0}-\bar{B}_{s}^{0}$ mixing in 331 models

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dc.creatorMartinez, R.
dc.creatorOchoa, F.
dc.date2008-02-03
dc.date.accessioned2026-07-07T11:14:09Z
dc.date.available2026-07-07T11:14:09Z
dc.descriptionComparing the theoretically predicted and measured values of the mass difference of the $B^{0}_{s}$ system, we estimate the lower bound on the mass of the $Z^{\prime}$ boson of models based on the $SU(3)_{c} \otimes SU(3)_{L} \otimes U(1)_X$ gauge group. By assuming zero-texture approaches of the quark mass matrices, we find the ratio of the measured value to the theoretical prediction from the Standard Model and the $Z^{\prime}$ contribution from the 331 models of the mass difference of the $B^{0}_{s}$ system. We find lower bounds on the $Z^{\prime}$ mass ranging between 1 TeV and 30 TeV for the two most popular 331 models, and four different zero-textures ansätze. The above results are expressed as a function of the weak angle associated to the $b-s-Z^{\prime}$ couplings.
dc.descriptionTo be published at Physical Revew D
dc.identifierhttps://arxiv.org/abs/0802.0309
dc.identifierhttp://arxiv.org/abs/0802.0309
dc.identifierPhys.Rev.D77:065012,2008
dc.identifierdoi:10.1103/PhysRevD.77.065012
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/191968
dc.subjectHigh Energy Physics - Phenomenology
dc.titleMass-matrix ansatz and constraints on $B_{s}^{0}-\bar{B}_{s}^{0}$ mixing in 331 models
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